At last, the moment you all have been waiting for, my favorite gijinka at MegaCon (that I was able to see):

Throh (Nageki Jp.). This guy, whoever he is, had some serious guts to not only dress up as a pokemon, but he also picked one with a generally unpopular character design among fans. Throh is from Black and White so he’s not too popular except to those really into the series (yes, “me”, I know). But this cosplayer brought a lot to the table.